In accordance with Chinese tradition, the pandas had to wait to learn their names until they were 100 days old.

"These pandas are so fragile when they're born. They need to get some size and some age on them before they are really out of the woods so it's a big milestone for us," said Zoo Atlanta's Dwight Lawson.

It's also a big milestone for Atlanta, with so much international attention on these twins.

"People do business with those that they like, and so if you can develop a warm relationship around these wonderful pandas I think that strong relationships begin," said Atlanta Mayor Kasim Reed.